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Diffstat (limited to 'lib/wchar.in.h')
| -rw-r--r-- | lib/wchar.in.h | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/lib/wchar.in.h b/lib/wchar.in.h new file mode 100644 index 00000000..1f1f1309 --- /dev/null +++ b/lib/wchar.in.h @@ -0,0 +1,310 @@ +/* A substitute for ISO C99 <wchar.h>, for platforms that have issues. + + Copyright (C) 2007-2009 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* Written by Eric Blake. */ + +/* + * ISO C 99 <wchar.h> for platforms that have issues. + * <http://www.opengroup.org/susv3xbd/wchar.h.html> + * + * For now, this just ensures proper prerequisite inclusion order and + * the declaration of wcwidth(). + */ + +#if __GNUC__ >= 3 +@PRAGMA_SYSTEM_HEADER@ +#endif + +#if defined __need_mbstate_t || (defined __hpux && ((defined _INTTYPES_INCLUDED && !defined strtoimax) || defined _GL_JUST_INCLUDE_SYSTEM_WCHAR_H)) || defined _GL_ALREADY_INCLUDING_WCHAR_H +/* Special invocation convention: + - Inside uClibc header files. + - On HP-UX 11.00 we have a sequence of nested includes + <wchar.h> -> <stdlib.h> -> <stdint.h>, and the latter includes <wchar.h>, + once indirectly <stdint.h> -> <sys/types.h> -> <inttypes.h> -> <wchar.h> + and once directly. In both situations 'wint_t' is not yet defined, + therefore we cannot provide the function overrides; instead include only + the system's <wchar.h>. + - On IRIX 6.5, similarly, we have an include <wchar.h> -> <wctype.h>, and + the latter includes <wchar.h>. But here, we have no way to detect whether + <wctype.h> is completely included or is still being included. */ + +#@INCLUDE_NEXT@ @NEXT_WCHAR_H@ + +#else +/* Normal invocation convention. */ + +#ifndef _GL_WCHAR_H + +#define _GL_ALREADY_INCLUDING_WCHAR_H + +/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before + <wchar.h>. + BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be + included before <wchar.h>. */ +#include <stddef.h> +#include <stdio.h> +#include <time.h> + +/* Include the original <wchar.h> if it exists. + Some builds of uClibc lack it. */ +/* The include_next requires a split double-inclusion guard. */ +#if @HAVE_WCHAR_H@ +# @INCLUDE_NEXT@ @NEXT_WCHAR_H@ +#endif + +#undef _GL_ALREADY_INCLUDING_WCHAR_H + +#ifndef _GL_WCHAR_H +#define _GL_WCHAR_H + +/* The definition of GL_LINK_WARNING is copied here. */ + +#ifdef __cplusplus +extern "C" { +#endif + + +/* Define wint_t. (Also done in wctype.in.h.) */ +#if !@HAVE_WINT_T@ && !defined wint_t +# define wint_t int +# ifndef WEOF +# define WEOF -1 +# endif +#endif + + +/* Override mbstate_t if it is too small. + On IRIX 6.5, sizeof (mbstate_t) == 1, which is not sufficient for + implementing mbrtowc for encodings like UTF-8. */ +#if !(@HAVE_MBSINIT@ && @HAVE_MBRTOWC@) || @REPLACE_MBSTATE_T@ +typedef int rpl_mbstate_t; +# undef mbstate_t +# define mbstate_t rpl_mbstate_t +# define GNULIB_defined_mbstate_t 1 +#endif + + +/* Convert a single-byte character to a wide character. */ +#if @GNULIB_BTOWC@ +# if @REPLACE_BTOWC@ +# undef btowc +# define btowc rpl_btowc +# endif +# if !@HAVE_BTOWC@ || @REPLACE_BTOWC@ +extern wint_t btowc (int c); +# endif +#elif defined GNULIB_POSIXCHECK +# undef btowc +# define btowc(c) \ + (GL_LINK_WARNING ("btowc is unportable - " \ + "use gnulib module btowc for portability"), \ + btowc (c)) +#endif + + +/* Convert a wide character to a single-byte character. */ +#if @GNULIB_WCTOB@ +# if @REPLACE_WCTOB@ +# undef wctob +# define wctob rpl_wctob +# endif +# if (!defined wctob && !@HAVE_DECL_WCTOB@) || @REPLACE_WCTOB@ +/* wctob is provided by gnulib, or wctob exists but is not declared. */ +extern int wctob (wint_t wc); +# endif +#elif defined GNULIB_POSIXCHECK +# undef wctob +# define wctob(w) \ + (GL_LINK_WARNING ("wctob is unportable - " \ + "use gnulib module wctob for portability"), \ + wctob (w)) +#endif + + +/* Test whether *PS is in the initial state. */ +#if @GNULIB_MBSINIT@ +# if @REPLACE_MBSINIT@ +# undef mbsinit +# define mbsinit rpl_mbsinit +# endif +# if !@HAVE_MBSINIT@ || @REPLACE_MBSINIT@ +extern int mbsinit (const mbstate_t *ps); +# endif +#elif defined GNULIB_POSIXCHECK +# undef mbsinit +# define mbsinit(p) \ + (GL_LINK_WARNING ("mbsinit is unportable - " \ + "use gnulib module mbsinit for portability"), \ + mbsinit (p)) +#endif + + +/* Convert a multibyte character to a wide character. */ +#if @GNULIB_MBRTOWC@ +# if @REPLACE_MBRTOWC@ +# undef mbrtowc +# define mbrtowc rpl_mbrtowc +# endif +# if !@HAVE_MBRTOWC@ || @REPLACE_MBRTOWC@ +extern size_t mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps); +# endif +#elif defined GNULIB_POSIXCHECK +# undef mbrtowc +# define mbrtowc(w,s,n,p) \ + (GL_LINK_WARNING ("mbrtowc is unportable - " \ + "use gnulib module mbrtowc for portability"), \ + mbrtowc (w, s, n, p)) +#endif + + +/* Recognize a multibyte character. */ +#if @GNULIB_MBRLEN@ +# if @REPLACE_MBRLEN@ +# undef mbrlen +# define mbrlen rpl_mbrlen +# endif +# if !@HAVE_MBRLEN@ || @REPLACE_MBRLEN@ +extern size_t mbrlen (const char *s, size_t n, mbstate_t *ps); +# endif +#elif defined GNULIB_POSIXCHECK +# undef mbrlen +# define mbrlen(s,n,p) \ + (GL_LINK_WARNING ("mbrlen is unportable - " \ + "use gnulib module mbrlen for portability"), \ + mbrlen (s, n, p)) +#endif + + +/* Convert a string to a wide string. */ +#if @GNULIB_MBSRTOWCS@ +# if @REPLACE_MBSRTOWCS@ +# undef mbsrtowcs +# define mbsrtowcs rpl_mbsrtowcs +# endif +# if !@HAVE_MBSRTOWCS@ || @REPLACE_MBSRTOWCS@ +extern size_t mbsrtowcs (wchar_t *dest, const char **srcp, size_t len, mbstate_t *ps); +# endif +#elif defined GNULIB_POSIXCHECK +# undef mbsrtowcs +# define mbsrtowcs(d,s,l,p) \ + (GL_LINK_WARNING ("mbsrtowcs is unportable - " \ + "use gnulib module mbsrtowcs for portability"), \ + mbsrtowcs (d, s, l, p)) +#endif + + +/* Convert a string to a wide string. */ +#if @GNULIB_MBSNRTOWCS@ +# if @REPLACE_MBSNRTOWCS@ +# undef mbsnrtowcs +# define mbsnrtowcs rpl_mbsnrtowcs +# endif +# if !@HAVE_MBSNRTOWCS@ || @REPLACE_MBSNRTOWCS@ +extern size_t mbsnrtowcs (wchar_t *dest, const char **srcp, size_t srclen, size_t len, mbstate_t *ps); +# endif +#elif defined GNULIB_POSIXCHECK +# undef mbsnrtowcs +# define mbsnrtowcs(d,s,n,l,p) \ + (GL_LINK_WARNING ("mbsnrtowcs is unportable - " \ + "use gnulib module mbsnrtowcs for portability"), \ + mbsnrtowcs (d, s, n, l, p)) +#endif + + +/* Convert a wide character to a multibyte character. */ +#if @GNULIB_WCRTOMB@ +# if @REPLACE_WCRTOMB@ +# undef wcrtomb +# define wcrtomb rpl_wcrtomb +# endif +# if !@HAVE_WCRTOMB@ || @REPLACE_WCRTOMB@ +extern size_t wcrtomb (char *s, wchar_t wc, mbstate_t *ps); +# endif +#elif defined GNULIB_POSIXCHECK +# undef wcrtomb +# define wcrtomb(s,w,p) \ + (GL_LINK_WARNING ("wcrtomb is unportable - " \ + "use gnulib module wcrtomb for portability"), \ + wcrtomb (s, w, p)) +#endif + + +/* Convert a wide string to a string. */ +#if @GNULIB_WCSRTOMBS@ +# if @REPLACE_WCSRTOMBS@ +# undef wcsrtombs +# define wcsrtombs rpl_wcsrtombs +# endif +# if !@HAVE_WCSRTOMBS@ || @REPLACE_WCSRTOMBS@ +extern size_t wcsrtombs (char *dest, const wchar_t **srcp, size_t len, mbstate_t *ps); +# endif +#elif defined GNULIB_POSIXCHECK +# undef wcsrtombs +# define wcsrtombs(d,s,l,p) \ + (GL_LINK_WARNING ("wcsrtombs is unportable - " \ + "use gnulib module wcsrtombs for portability"), \ + wcsrtombs (d, s, l, p)) +#endif + + +/* Convert a wide string to a string. */ +#if @GNULIB_WCSNRTOMBS@ +# if @REPLACE_WCSNRTOMBS@ +# undef wcsnrtombs +# define wcsnrtombs rpl_wcsnrtombs +# endif +# if !@HAVE_WCSNRTOMBS@ || @REPLACE_WCSNRTOMBS@ +extern size_t wcsnrtombs (char *dest, const wchar_t **srcp, size_t srclen, size_t len, mbstate_t *ps); +# endif +#elif defined GNULIB_POSIXCHECK +# undef wcsnrtombs +# define wcsnrtombs(d,s,n,l,p) \ + (GL_LINK_WARNING ("wcsnrtombs is unportable - " \ + "use gnulib module wcsnrtombs for portability"), \ + wcsnrtombs (d, s, n, l, p)) +#endif + + +/* Return the number of screen columns needed for WC. */ +#if @GNULIB_WCWIDTH@ +# if @REPLACE_WCWIDTH@ +# undef wcwidth +# define wcwidth rpl_wcwidth +extern int wcwidth (wchar_t); +# else +# if !defined wcwidth && !@HAVE_DECL_WCWIDTH@ +/* wcwidth exists but is not declared. */ +extern int wcwidth (int /* actually wchar_t */); +# endif +# endif +#elif defined GNULIB_POSIXCHECK +# undef wcwidth +# define wcwidth(w) \ + (GL_LINK_WARNING ("wcwidth is unportable - " \ + "use gnulib module wcwidth for portability"), \ + wcwidth (w)) +#endif + + +#ifdef __cplusplus +} +#endif + +#endif /* _GL_WCHAR_H */ +#endif /* _GL_WCHAR_H */ +#endif |